[2753] | 1 | // ------------
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| 2 | // author: jan dousa (jan.dousa@pecny.cz)
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| 3 | // ------------
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| 4 |
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| 5 | #include <iostream>
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| 6 | #include "bncmap.h"
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| 7 |
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| 8 |
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| 9 | // ------------
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| 10 | bncMap::bncMap(QWidget* parent) : QDialog(parent)
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| 11 | {
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| 12 | _scale = 2.8; // scale the map
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| 13 | _LaOff = 20; // shift longitude
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| 14 | _mapView = new QGraphicsView();
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| 15 | _mapScen = new QGraphicsScene();
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| 16 | _mapView->setScene(_mapScen);
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| 17 | slotReadMap();
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| 18 | slotCreateMap();
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| 19 |
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| 20 | setWindowTitle(tr("World Map [*]"));
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| 21 |
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| 22 | /* close button */
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| 23 | QPushButton* buttClose = new QPushButton("Close");
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| 24 | connect(buttClose, SIGNAL(clicked()), this, SLOT(close()));
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| 25 |
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| 26 | /* reset button */
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| 27 | QPushButton* buttReset = new QPushButton("Reset");
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| 28 | connect(buttReset, SIGNAL(clicked()), this, SLOT(slotResetMap()));
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| 29 |
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| 30 | /* layout */
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| 31 | QGridLayout *layout = new QGridLayout;
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| 32 | layout->setRowMinimumHeight( 0, 250);
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| 33 | layout->addWidget(_mapView, 0, 0, 3, 1, Qt::AlignLeft);
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| 34 | layout->addWidget(buttReset, 1, 1, 1, 1, Qt::AlignBottom);
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| 35 | layout->addWidget(buttClose, 2, 1, 1, 1, Qt::AlignBottom);
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| 36 | setLayout(layout);
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| 37 |
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| 38 | // this->resize(860,400);
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| 39 | this->show();
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| 40 | }
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| 41 |
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| 42 |
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| 43 | // ------------
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| 44 | bncMap::~bncMap(){
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| 45 | delete _mapView;
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| 46 | }
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| 47 |
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| 48 |
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| 49 | // ------------
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| 50 | void bncMap::slotReadMap()
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| 51 | {
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[2754] | 52 | QFile world(":worldmap.dat");
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[2753] | 53 | float fi, la;
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| 54 |
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[2754] | 55 | world.open(QIODevice::ReadOnly | QIODevice::Text);
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[2753] | 56 |
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[2754] | 57 | QTextStream in(&world);
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| 58 | in.setRealNumberNotation(QTextStream::FixedNotation);
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[2753] | 59 |
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[2754] | 60 | while( ! in.atEnd() ){
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[2753] | 61 |
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[2754] | 62 | in >> la >> fi;
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| 63 | _worldMap << QPointF( la, -fi );
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| 64 |
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[2753] | 65 | }
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[2754] | 66 |
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[2753] | 67 | world.close();
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| 68 | }
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| 69 |
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| 70 |
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| 71 | // ------------
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| 72 | void bncMap::slotCreateMap()
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| 73 | {
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| 74 | // mapScen->setForegroundBrush(QBrush(Qt::lightGray, Qt::CrossPattern)); // grid
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| 75 |
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| 76 | int begIdx = 0;
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| 77 | int endIdx = 0;
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| 78 | for( int i=0; i < _worldMap.size(); i++ ){
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| 79 | if( _worldMap.at(i).x() == 0.0 and _worldMap.at(i).y() == 0.0 ){
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| 80 | if( i > 0 ){
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[2754] | 81 | endIdx = i-1;
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[2753] | 82 | while( begIdx < endIdx ){
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| 83 |
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[2754] | 84 | int l1 = 0;
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| 85 | int l2 = 0;
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[2753] | 86 |
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| 87 | float la1 = _worldMap.at(begIdx+0).x() + _LaOff;
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| 88 | float fi1 = _worldMap.at(begIdx+0).y();
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| 89 | float la2 = _worldMap.at(begIdx+1).x() + _LaOff;
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| 90 | float fi2 = _worldMap.at(begIdx+1).y();
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| 91 | begIdx++;
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[2754] | 92 |
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| 93 | while( la1 < 0 ){ la1 += 360; l1++; }
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| 94 | while( la1 >= 360 ){ la1 -= 360; l1--; }
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| 95 | while( la2 < 0 ){ la2 += 360; l2++; }
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| 96 | while( la2 >= 360 ){ la2 -= 360; l2--; }
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[2753] | 97 |
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[2754] | 98 | if( l1 != 0 and l2 == 0 ){ continue; } // break this line
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| 99 | if( l2 != 0 and l1 == 0 ){ continue; } // break this line
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[2753] | 100 |
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| 101 | _mapScen->addLine(la1*_scale, fi1*_scale, la2*_scale, fi2*_scale, QPen(QBrush(Qt::black),1));
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| 102 | }
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| 103 | }
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| 104 | if( i+1 < _worldMap.size() ) begIdx = i+1;
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| 105 | }
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| 106 | }
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| 107 | _mapScen->setSceneRect(0*_scale,-90*_scale,360*_scale,180*_scale);
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| 108 | }
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| 109 |
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| 110 |
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| 111 | // ------------
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| 112 | void bncMap::slotResetMap()
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| 113 | {
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| 114 | QMutexLocker locker(&_mutexMap);
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| 115 | _mapScen->clear();
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| 116 | slotCreateMap();
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| 117 | }
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| 118 |
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| 119 |
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| 120 | // ------------
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| 121 | void bncMap::slotNewPoint(QPointF point, QString name, QPen pen)
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| 122 | {
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| 123 | float la = point.x() + _LaOff;
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| 124 | float fi = point.y();
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| 125 |
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| 126 | while( la < 0 ){ la += 360; }
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| 127 | while( la >= 360 ){ la -= 360; }
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| 128 |
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| 129 | _mapScen->addEllipse( la*_scale, -fi*_scale, 5, 5, pen );
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| 130 |
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| 131 | if( ! name.isEmpty() ){
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| 132 | QGraphicsTextItem* nameItem = new QGraphicsTextItem( name );
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| 133 | nameItem->setPos( QPointF(la*_scale, -fi*_scale));
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| 134 | nameItem->setFont( QFont("Helvetica", 8) );
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| 135 |
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| 136 | _mapScen->addItem( nameItem );
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| 137 | }
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[2754] | 138 | }
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